145399751952 has 160 divisors (see below), whose sum is σ = 468630505728. Its totient is φ = 37821800448.

The previous prime is 145399751927. The next prime is 145399751963. The reversal of 145399751952 is 259157993541.

It is a super-2 number, since 2×145399751952² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90868 + ... + 546860.

Almost surely, 2^145399751952 is an apocalyptic number.

145399751952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145399751952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234315252864).

145399751952 is an abundant number, since it is smaller than the sum of its proper divisors (323230753776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145399751952 is a wasteful number, since it uses less digits than its factorization.

145399751952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456097 (or 456091 counting only the distinct ones).

The product of its digits is 15309000, while the sum is 60.

The spelling of 145399751952 in words is "one hundred forty-five billion, three hundred ninety-nine million, seven hundred fifty-one thousand, nine hundred fifty-two".